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3 years ago

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Mr. Biker rides at 12 miles per hour. The equation y=12x represents this relationship, where x is the independent variable for t

ime in hours and y is the dependent variable distance in miles. After 6 hours, how far has the biker gone in miles.

2 answers:

mr Goodwill [35]3 years ago

3 0

Answer:72 miles

Step-by-step explanation:

Dominik [7]3 years ago

3 0

About 72 miles sorry if i’m wrong

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Which of the following is a correct translation for the expression 9 – x ?

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The answer you're looking for is A. a number subtracted from 9

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Answer:

Volume: $\frac{2}{3}\pi r^3$

Ratio: $\frac{2}{9}r$

Step-by-step explanation:

First of all, we need to find the volume of the hemispherical tank.

The volume of a sphere is given by:

$V=\frac{4}{3}\pi r^3$

where

r is the radius of the sphere

V is the volume

Here, we have a hemispherical tank: a hemisphere is exactly a sphere cut in a half, so its volume is half that of the sphere:

$V'=\frac{V}{2}=\frac{\frac{4}{3}\pi r^3}{2}=\frac{2}{3}\pi r^3$

Now we want to find the ratio between the volume of the hemisphere and its surface area.

The surface area of a sphere is

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For a hemisphere, the area of the curved part of the surface is therefore half of this value, so $2\pi r^2$ . Moreover, we have to add the surface of the base, which is $\pi r^2$ . So the total surface area of the hemispherical tank is

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Answer:

The ratio of the perimeter of ABCD to JKLM is;

b. 3/5

Step-by-step explanation:

Given that ABCD ~ JKLM, where;

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Step-by-step explanation:

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